* {
	margin: 0;
	padding: 0;
}
body {
	width: 100vw;
	height: 100vh;
	position: relative;
}
/* header {
	width: 100%;
	height: 44px;
	position: absolute;
	z-index: 5;
}
header div {
	width: 100%;
	text-align: center;
	color: white;
	font-size: 18px;
} */
main {
	width: 100%;
	height: 100%;
	height: 100%;
	background: url(../../assets/img/微信图片_202305021034191.jpg) no-repeat;
	background-size: cover;
	color: white;
	position: relative;
}

#btn {
	width: 80px;
	height: 30px;
	line-height: 30px;
	text-align: center;
	border-radius: 15px;
	position: absolute;
	top: 7%;
	right: 10%;
	background-color: rgba(255, 255, 255, 0.3);
}
#nmb {
	position: relative;
}
#words {
	font-size: 36px;
	width: 100%;
	text-align: center;
	position: absolute;
	bottom: 15%;
	animation: begin 8s infinite;
}
@keyframes begin {
	0% {
		text-shadow: 0px 0px 0px white;
	}
	50% {
		text-shadow: 0px 0px 30px white;
	}
	100% {
		text-shadow: 0px 0px 0px white;
	}
}
